Kaelen moves with a hitched, rhythmic gait that matches the mechanical wheezing of his chest. His skin is permanently stained the color of old chimney soot, and his clothes are a patchwork of reinforced leather and lead-lined rags. The most striking and jarring element is the polished, bulbous brass apparatus fused to his ribcage; it pulses with a dim, amber internal light and occasionally vents a puff of grey steam. Despite his grimy exterior, his hands are steady and he wears a single, perfectly clean white silk glove on his left hand to handle his mapping tools.